Road-grading machine.



J. REIN.

' ROAD GRADING MACHINE.

APPLICATION rum) n12. 2. 190a.

Patented Dec. 1, 1908.

2 SHEETS-SHEET 1.

WITNESSES. 14" VI'JVTOR.

J. 1mm, ROAD GRADING. MAGHINE.

APPLICATION FILEDjMARLZ, 1908.

905,367. Patented Dec. 11, 1908:"

2 SHEETS-BEBE! 2.

arms nz'ronmz'iz- JOHN REIN, OF WHALAN, MINNESOTA.

ROAD-GRADING- MACHINE.

Specification of Letters Patent.

Patented Dec. 1, 1908.

Application filed March 2, 1908. Serial No. 418,667.

To all whom it may concern:

Be it known that I, JOHN REIN, a citizen of the United States, residing at VVhalan, in the county of Fillmore and State of Minnesota, have invented a new and useful Road- Grading Machine, of which the following is a specification.

My invention relates to road-grading machines; and the object is to provide a simple but efficient machine of said kind.

In the acoompanyin drawings, Figure 1 is a top or plan View of the machine. Fig. 2 is a right hand side elevation of the machine. Fig. 3 is a left hand sectional side elevation of a portion of the machine on the line a.-a in Fig. 1. Fig. 4 is an enlarged left hand side elevation of an earth-conveying endless carrier of the machine. Fig. 5 is a right hand side sectional elevation near the front supporting wheel about as on line 11-42 in Fig. 1. Fig. 6 is a right hand end View of Fig. 5. Fig. 7 is a side view of the front end of the plow beam and its clevis.

Referring to the drawing by reference numerals, 1 designates a frame suported on the front wheel 2, side wheel 3 and a traction wheel I. The wheels 3 and 2 are mounted on upright stems 3 and 2 journaled to the frame and having one a rocker-arm 5 and the other a similar arm 6, both pivotally connected to a rod 7, so that the wheels will always stand in parallel planes to each other. The stem 2 has its upper end provided with two opposite arms 8 to which the bifurcated rear end of a steering pole 9 is secured in such a pivotal manner that it is allowed to swing up and down at its front end. Said stem 2 is journaled in a bracket 10, which is slidable vertically in a bearing 11 on the frame, and is pivoted at 12 (see Fig. 6) to a lever 13, which is pivotally mounted on the frame at 14 and may be shifted into different notches of fixed sector 15 and thus hold the plow frame at different elevations as may be required in driving over uneven ground or plowing at various depths. be seen that the stem 2 has an angular bend 16 upon which the bracket 10 rests. Instead of such bend a collar or a shoulder on the stem may be used, but the form shown is cheap and simple.

In Fig. 6 it will 17 represents single-tree and whiflle-trees by which horses are to draw the machine.

18 is a seat mounted on the frame for the driver to occupy.

In practical use the tached to the frame.

In the front end of the frame is slidably draft trees are at- .inserted and retained by a nut 19 a hook 20,

which engage in either one of the holes 21 of the plow clevis 25 (see Fig. 7) of the plow beam 26, according to the depth it is desired to plow. The plow beam is pivotchanged by the plow beam and sliding motion of the hook 20 permits of the necessary forward motion of the plow, while the nut 19 regulates the rearward motion according to how the nut is regulated for the depth being plowed.

WVhen the machine is in operation the earth plowed up by the plow along the side of the road operated on is by the mold board 31 and an inclined board 32 fixed on the main frame or plow beam, guided onto an endless conveyer 33 which is operated from the traction wheel and is pivoted to swing horizontally so as to convey the earth to the desired portions of the road to fill it, or if not needed there it may be deposited upon the ground beyond the road by driving the machine so that the wheel 3 travels outside the road operated on. To more fully describe said conveyer, it will be noted that it has a frame 34 pivotally secured at 35 (see Fig. 3) to the main frame to swing hori- Zontally therefrom and its outer and higher end provided with two supporting wheels 36 (one of which is shown in Fig. 4;) travel- ,ing on a track or rail 37 fixed to the main frame. The frame may thus be swung and held in various positions by a hand lever 38 pivoted at 39 to the main frame and having its short end connected to the conveyer frame by a link 40, and its handle end engaged in supported by rollers 46 journaled in and (EX-- tending between the side rails. The canvas is secured on two endless chains 47, operated by sprocket wheels 48, fixed on the lower roller 44, which is rotated by a miter gear 49, meshing directly above the pivot joint 35, with a miter gear 50, which is fixed on a shaft 51, having a sprocket 52, driven by a link-belt 53 and a larger sprocket 54 fixed to the traction wheel. It will be observed that the face of the miter gear 49 is rounded or bulged outward between the inner and outer ends of the teeth so as to allow the gear a rocking motion at the meshing point when the conveyer frame is swung on its pivot.

The dotted lines 55 indicate a shield or cover going over the main gear mechanism.

To enable the driver to put the conveyer out of action while. driving the machine idle I'provide a hand lever 56, pivoted at 57 to a bracket 58 on the main frame and let said lever engage a slidingly keyed clutch member 59, which may thus be thrown into engagement with clutch teeth 60 on the sprocket wheel 52, which is loose on its shaf; so that when the clutch member is moved away from it it will revolve without rotating the shaft.

61 are side guards to prevent the earth from escaping over the edges of the conveyer belt.

The shaft 62 of the roller 45 (see Fig. 4) is passed through slots 63 in the side rails and journaled in the ends of rack bars 64 sliding in bearings 65 and engaged by a cog wheel 66 fixed on a shaft 67, journaled in the rails and having one such wheel at each side the frame. This shaft is turned by a crank 68 and held against accidental turning by a spring-pressed dog 69 engaging the wheel. By this mechanism the conveyer belt is at all times kept stretched.

In Fig. 4 the side board 61 is shown raised so as to get a better view of the cleats of the conveyer but where the material operated on is sandy, the boards are kept close down upon the conveyer belt. I

Having thus described my invention, what I claim is 1. A road-grading machine comprising a skeleton frame mounted on a traction wheel and two smaller supporting wheels, a plow mounted inside the frame, an endless con- "eyer mounted on the frame and operatively connected with the traction wheel for con veying the earth from the plow toward one side of the machine, the frame of said eonveyer having its inner end pivotally conneeted with the main frame and its outer v swinging-the conveyer frame on its pivot.

2. A road-grading machine comprising a skeleton'frame mounted on a traction wheel and two smaller supporting wheels, a plow mounted inside the frame, an endless conveyer mounted on the frame and operatively connected with the traction wheel for con veying the earth from the plow toward one side of the machine, and means for uncoupling the conveyer from the traction wheel when the machine is-driven idle.

3. A road-grading machine comprising a skeleton frame mounted on a traction wheel and two-smaller supporting wheels, a plow mounted inside the frame, an endless conveyer mounted on the frame and operatively connected with the traction wheel for conveying the earth from the plow toward one side of the'machine, means for raising and lowering the plow in the frame, and means for raisingand lowering the front end of the frame.

4. A road-grading machine comprising a skeleton frame mounted on a traction wheel and two smaller supporting wheels, a plow mounted inside the frame, an endless conveyer mounted on the frame and operatively connected with the traction wheel for conveying the earth from the plow toward one side of the machine, said smaller supporting wheels being mounted on vertical rotatable stems journaled to the frame, each stem having a rocker arm, a rod pivotally connecting said arms, one of said stems being located near the front end of the frame and having secured on it a cross piece forming two opposite radial arms, a steering pole attached to said arms so as to steer or guide the machine.

5. A road-grading machine comprising a skeleton frame mounted on a traction wheel and two smaller supporting wheels, a plow mounted inside the frame, an endless conveyer mounted on the frame and operatively connected with the traction wheel for conveying the earth from the plow toward one side of the machine, said plow having a partly slidable connection with the front end of the main frame, two arches pivotally mounted on the frame and pivotally engaging the plow to raise and lower it, a lever secured to one of the arches, and means for holding said lever in variously inclined po- -si tions.

In testimony whereof I affix my signature, in presence of two witnesses.

JOHN REIN. lVitnessesn ANToN TORGERSON, RUDOLPH JOHNSON. 

